{
    "summary": [
        {
            "name": "tk_transfers",
            "title": "工单转派流水",
            "primary": ["id"],
            "catelog": "entity"
        }
    ],
    "fields": [
        {"name": "id", "title": "主键ID", "type": "str", "length": 32, "nullable": "no"},
        {"name": "ticket_id", "title": "工单ID", "type": "str", "length": 32, "nullable": "no"},
        {"name": "action", "title": "动作", "type": "str", "length": 32, "nullable": "no"},
        {"name": "from_role", "title": "转出角色", "type": "str", "length": 64},
        {"name": "from_user", "title": "转出人", "type": "str", "length": 32},
        {"name": "to_role", "title": "转入角色", "type": "str", "length": 64},
        {"name": "to_user", "title": "转入人", "type": "str", "length": 32},
        {"name": "reason", "title": "原因", "type": "str", "length": 500},
        {"name": "operator_id", "title": "操作人", "type": "str", "length": 32},
        {"name": "created_at", "title": "创建时间", "type": "timestamp", "nullable": "no"}
    ],
    "indexes": [
        {"name": "idx_tkt_ticket", "idxtype": "index", "idxfields": ["ticket_id", "created_at"]}
    ],
    "codes": [
        {"field": "action", "table": "appcodes_kv", "valuefield": "k", "textfield": "v", "cond": "parentid='tk_action'"}
    ]
}